Cell Lids/Covers TRIZ Cases

A lower-side threaded mounting hole frees space between the end plate and cells, improving battery module packaging and pack downsizing.

Oblique hole walls and extension bumps help remove top patch offcuts faster, cutting machining time while preserving strength and insulation.

Differential-thickness vent sections rupture and pivot under excess battery module pressure, replacing sensors and controllers with simpler relief.

A dual-recess end cover creates a weakened burst point for consistent battery cell pressure relief and lower ignition risk.

A firewall layer between the busbar body and heat-resistant member delays flame penetration, ceramization, and short-circuit risk.

An elastic rotating lever secures the battery cover and support without screws or glue, shortening assembly and simplifying disassembly.

A single removable door with an integrated seal, spring clip, and auto-locking latch cuts water and debris entry while keeping battery access easy.

Stress concentration at a targeted weakness line makes the venting membrane open at a consistent pressure, improving battery cell safety.

Stacked plate layers with a cavity support structure strengthen battery boxes while cutting weight, parts, and bolt-based assembly steps.

A single protective assembly fixes and insulates both positive and negative busbars, cutting battery module parts and assembly complexity.

Support walls and delayed-contact protrusions guide cell insertion while suppressing battery expansion and deformation during charging.

An internal support member bends and stabilizes battery tabs to prevent bifurcation, insertion, and short circuits when cells are inverted.

Support walls and delayed-contact protrusions guide battery cell swelling to limit charging damage and preserve module integrity.

Integrated terminal sealing and insert-injection molding prevent electrolyte leakage while lowering joining complexity and resistance in battery cells.

A hollowed stop portion in the top cap speeds electrolyte injection and prevents leakage by buffering negative pressure at the sealing rivet.

A low-shrinkage polyester resin with aluminum hydroxide and conductive filler improves dimensional stability, flame retardancy, and EMI shielding.

A two-region welding bead combines deep keyhole penetration with wide conduction welding to strengthen battery cap sealing while limiting pores and spatter.

A planar cylindrical cell pack uses PTC heating film and spacing elements to warm from -20°C for safe charging without liquid thermal systems.

A recessed pressure relief component sits flush within the end cover, freeing battery cell height for more electrode and active material volume.

A nested sealing ring, plate, and limiting member close terminal gaps to prevent battery leakage, short circuits, and unreliable assembly.

Inclined side-cover and support-frame surfaces absorb cell expansion pressure to prevent battery pack deformation and maintain electrical performance.

Using insulating shells and an insulating case cuts battery weight and extra insulation parts, raising energy density while maintaining isolation.

A stepped copper busbar with a refractory cover blocks venting gas and fire movement to prevent short circuits and secondary battery pack damage.

A slot-and-latch casing compresses a sealing ring to seal battery modules faster, avoiding screws that slow assembly and mar shell appearance.

Pressure-triggered insulating paper over vent openings releases hot gas to cool the battery module and reduce explosion risk from heat buildup.

A simplified cell cover lets pouch cells mount directly to the pack case, cutting weight and volume while preventing handling damage.

A split terminal layout puts the positive contact in the battery cover and the negative contact in the body to shrink housing size without losing connection reliability.

Built-in anti-rotation features lock opposing cover plates to resist lateral shear, helping battery cells maintain sealing and structural stability.

A raised center top plate and separated supports improve battery pack vibration isolation while preserving a clear gas exhaust path.

An insulating holding block keeps fused battery connector parts separated during impact, preventing re-contact and thermal runaway.

A stepped pole surface shields the upper plastic during laser welding, preserving seam strength and end cover assembly reliability.

A composite partition of fiber-reinforced plastic, compressible foam, and silicone keeps battery regions refractory and gastight during cell outgassing.

A dual-function battery box lock stays sealed in normal use, then breaks the interface seal under excess internal pressure to vent safely without extra space.

A rotatable battery cover with a seal member and finger rib enables easier battery replacement while maintaining waterproof sealing.

A clamped insulating member blocks metal wire paths between the electrode terminal and end cover, reducing battery cell short-circuit risk.

A tab-mounted protection sheet shields the electrode assembly from electrolyte injection impact, helping prevent separator or plate damage.

A blocking insulator in the end cover assembly keeps terminal wires off the cover, cutting short-circuit risk while improving sealing.

A plate member biases the case side wall to align bus bar modules in Cell-to-Pack packs while avoiding discharge valve interference.

Multiple pole bodies on one riveting block expand battery top-cover connection area, improving overcurrent capability in thin cells.

A connection layer joins copper and aluminum in a battery lead-out member to improve bond reliability while controlling material cost.

Detachable blocking parts seal empty cell holder regions to stop urethane or silicone leakage and maintain stable battery cell coupling.

A beaded restraint band fastens over the cover base to suppress upper cover expansion while avoiding a heavier battery pack fixing band.

A detachable blocking part seals empty cell-holder regions to stop urethane or silicone leakage while preserving flexible battery cell capacity.

A soldered connection layer between copper and aluminum strengthens the battery cover lead-out member while limiting overflow and material use.

A support between series battery cells fixes welded electrode tabs to reduce joint tearing, stabilize connections, and simplify assembly.

A thin breakable wall and annular vent path redirect hot pressurized gas away from adjacent cylindrical cells despite tab tolerance limits.

A ribbed hollow reinforcement beam inside pack side walls boosts battery pack side strength without sacrificing energy efficiency.

A ductile cell cover and rupturable sheet remove module cases and frames, raising energy density while enabling controlled gas venting.